head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is execution, and it is a single point.

Execution · Practiced Mastery
Zelda-meets-God-of-War action adventure starring the horseman War.

Execution · Practiced Mastery
Sumi-e Zelda-like where a wolf goddess paints the world back to life.
Darksiders leans Execution (Practiced Mastery); Okami leans Execution (Practiced Mastery).
Darksiders leans a little harder on execution, though the gap is small.
Darksiders
combo-driven combat with dodge timing
Okami
Brush strokes and combat timing, forgiving
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Darksiders
enemies are scripted
Okami
Demons follow fixed patterns
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Darksiders
world and bosses are fixed
Okami
Authored world with no randomness
Darksiders leans a little harder on optimization, though the gap is small.
Darksiders
Zelda-style dungeons and upgrade routing
Okami
Brush technique use, upgrades, and exploration
A matching score does not mean a matching test. Two games can both sit at 10 on execution and demand completely different things of you - which is why the reasoning above matters more than the number beside it.